diff --git a/.gitignore b/.gitignore
index 97c3265..84d0f81 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ data/redis/
 models/
 logs/*.log
 logs/*.pid
+dist/
 __pycache__/
 .venv/
 *.pyc
diff --git a/Build_StockBot_Installer.bat b/Build_StockBot_Installer.bat
new file mode 100644
index 0000000..d05d347
--- /dev/null
+++ b/Build_StockBot_Installer.bat
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+powershell.exe -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\build_installer.ps1" %*
+echo.
+pause
diff --git a/INSTALL_FROM_PACKAGE.md b/INSTALL_FROM_PACKAGE.md
new file mode 100644
index 0000000..0be66e6
--- /dev/null
+++ b/INSTALL_FROM_PACKAGE.md
@@ -0,0 +1,51 @@
+# StockBot v3 Install Package
+
+This package is built by `scripts/build_installer.ps1` from committed Git
+contents only. It intentionally excludes secrets, runtime databases, logs, and
+local lock files.
+
+## Install After Windows Reformat
+
+1. Extract the package to the target folder, for example:
+   `C:\Users\<user>\Documents\stockbot_v3`
+2. Restore private runtime files from your backup:
+   - `.env`
+   - `data\stockbot.db`
+   - optional: `data\daily_context.json`, `data\midday_context.json`
+3. Run `Restore_StockBot.bat` as Administrator.
+4. Keep `KIS_MOCK=true` and `DRY_RUN=true` until the restored environment has
+   passed connection and scheduler checks.
+
+## What Restore_StockBot.bat Does
+
+- Creates required folders.
+- Installs Git, Node.js, and Python 3.11 with winget when available.
+- Creates `.venv`.
+- Installs Python dependencies, using `vendor\wheels` first.
+- Installs Claude/Codex CLI when npm is available.
+- Registers Windows Task Scheduler jobs unless skipped.
+- Runs a basic Python dependency sanity check.
+
+## Useful Options
+
+```powershell
+.\Restore_StockBot.bat -SkipWinget
+.\Restore_StockBot.bat -SkipScheduler
+.\Restore_StockBot.bat -OnlinePip
+```
+
+## Build A Package
+
+From the project root:
+
+```powershell
+.\Build_StockBot_Installer.bat
+```
+
+or:
+
+```powershell
+powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\scripts\build_installer.ps1
+```
+
+The generated archive and manifest are written to `dist\`.
diff --git a/scripts/build_installer.ps1 b/scripts/build_installer.ps1
new file mode 100644
index 0000000..6ec2ac3
--- /dev/null
+++ b/scripts/build_installer.ps1
@@ -0,0 +1,104 @@
+param(
+    [string]$OutputDir,
+    [string]$PackageName
+)
+
+$ErrorActionPreference = "Stop"
+
+[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
+$OutputEncoding = [System.Text.Encoding]::UTF8
+$env:PYTHONUTF8 = "1"
+$env:PYTHONIOENCODING = "utf-8"
+
+$Project = Split-Path -Parent $PSScriptRoot
+Set-Location $Project
+
+function Write-Step {
+    param([string]$Message)
+    Write-Host ""
+    Write-Host "== $Message ==" -ForegroundColor Cyan
+}
+
+function Invoke-Git {
+    param([string[]]$GitArgs)
+
+    $Output = & git @GitArgs 2>&1
+    if ($LASTEXITCODE -ne 0) {
+        throw "git $($GitArgs -join ' ') failed: $Output"
+    }
+    return $Output
+}
+
+if (-not (Get-Command git -ErrorAction SilentlyContinue)) {
+    throw "Git is required to build the installer package."
+}
+
+$Commit = (Invoke-Git @("rev-parse", "--short=12", "HEAD")).Trim()
+$Branch = (Invoke-Git @("rev-parse", "--abbrev-ref", "HEAD")).Trim()
+$Status = Invoke-Git @("status", "--porcelain")
+
+if (-not $OutputDir) {
+    $OutputDir = Join-Path $Project "dist"
+}
+if (-not [System.IO.Path]::IsPathRooted($OutputDir)) {
+    $OutputDir = Join-Path $Project $OutputDir
+}
+
+if (-not $PackageName) {
+    $Stamp = Get-Date -Format "yyyyMMdd_HHmmss"
+    $PackageName = "stockbot_v3_installer_${Stamp}_${Commit}.zip"
+}
+if (-not $PackageName.EndsWith(".zip", [System.StringComparison]::OrdinalIgnoreCase)) {
+    $PackageName = "$PackageName.zip"
+}
+
+New-Item -ItemType Directory -Force -Path $OutputDir | Out-Null
+$PackagePath = Join-Path $OutputDir $PackageName
+$ManifestPath = Join-Path $OutputDir ($PackageName -replace "\.zip$", ".manifest.txt")
+
+Write-Step "Preflight"
+Write-Host "Project : $Project"
+Write-Host "Branch  : $Branch"
+Write-Host "Commit  : $Commit"
+if ($Status) {
+    Write-Host "[warn] Working tree has uncommitted changes. Package uses committed HEAD only." -ForegroundColor Yellow
+    $Status | ForEach-Object { Write-Host "       $_" -ForegroundColor Yellow }
+}
+
+Write-Step "Archive"
+if (Test-Path $PackagePath) {
+    Remove-Item -LiteralPath $PackagePath -Force
+}
+Invoke-Git @("archive", "--format=zip", "--output", $PackagePath, "HEAD") | Out-Null
+
+$PackageInfo = Get-Item $PackagePath
+$TrackedCount = (Invoke-Git @("ls-tree", "-r", "--name-only", "HEAD") | Measure-Object).Count
+
+$Manifest = @(
+    "StockBot v3 installer package",
+    "BuiltAt=$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')",
+    "Branch=$Branch",
+    "Commit=$Commit",
+    "Package=$($PackageInfo.Name)",
+    "Bytes=$($PackageInfo.Length)",
+    "TrackedFiles=$TrackedCount",
+    "",
+    "Included:",
+    "- committed project files from HEAD",
+    "- vendor/wheels offline wheelhouse",
+    "- models/scalping_model.* when tracked",
+    "- data/*training_dataset.csv when tracked",
+    "",
+    "Excluded by design:",
+    "- .git history",
+    "- .env and credentials",
+    "- data/stockbot.db",
+    "- data/kis_token_*.json",
+    "- logs and lock files",
+    "- local virtual environments"
+)
+$Manifest | Set-Content -Path $ManifestPath -Encoding UTF8
+
+Write-Step "Done"
+Write-Host "Package : $PackagePath" -ForegroundColor Green
+Write-Host "Manifest: $ManifestPath" -ForegroundColor Green